We tell you the part number for broken screens.

You call and say your laptop screen is cracked. I ask a couple quick questions, what model, what size, and I look up the exact part to order. I give you the number. You order it. You come in with the right part in hand.

This saves you a trip. You don't have to come by the shop to figure out what part fits. You don't have to guess and bring the wrong one. You order it ahead and we have it waiting.

I'm still doing the detective work on the call. For you, it means less friction. For me, it means fewer calls asking 'did you order the right part.'